<template>
  <form-item-wrapper :designer="designer" :field="field" :rules="rules" :design-state="designState"
    :parent-widget="parentWidget" :parent-list="parentList" :index-of-parent-list="indexOfParentList"
    :sub-form-row-index="subFormRowIndex" :sub-form-col-index="subFormColIndex" :sub-form-row-id="subFormRowId">
    <el-input ref="fieldEditor" v-model="fieldModel" v-show="!isReadMode" :disabled="field.options.disabled"
      :readonly="field.options.readonly || field.options.disabled || field.options?.isAllowEditSelectorField == '2'" :size="field.options.size" class="hide-spin-button" :type="inputType"
      :show-password="field.options.showPassword" :placeholder="field.options.placeholder"
      :clearable="field.options.clearable" :minlength="field.options.minLength" :maxlength="field.options.maxLength"
      :show-word-limit="field.options.showWordLimit" :prefix-icon="field.options.prefixIcon"
      :suffix-icon="field.options.suffixIcon" @focus="handleFocusCustomEvent" @blur="handleBlurCustomEvent"
      @input="handleInputCustomEvent" :style="{ '--el-input-bg-color': field.options.contentBackgroundColor }"
      @change="onFieldChangeEvent">
      <template #append v-if="field.options.appendButton || field.options.appendText">
        <el-button v-if="field.options.appendButton || field.options.appendText"
                   :disabled="field.options.disabled || field.options.appendButtonDisabled"
          @click="emitAppendButtonClick">
          <el-icon v-if="field.options.appendButton && !!field.options.buttonIcon"><component :is="field.options.buttonIcon" /></el-icon>
          <template v-if="field.options.appendText">
            {{field.options.textForAppend}}
          </template>
        </el-button>
      </template>
      <template #prepend v-if="field.options.prepend">{{ field.options.prepend }}</template>
      <template #append v-if="field.options.append">{{ field.options.append }}</template>
    </el-input>
    <template v-if="isReadMode">
      <template v-if="field.options.type === 'password'">
        <span class="readonly-mode-field">********</span>
      </template>
      <template v-else>
        <span v-if="field.options.prepend">{{ field.options.prepend }}</span>
        <span class="readonly-mode-field no-wrap" :title="contentForReadMode">{{ contentForReadMode }}</span>
        <span v-if="field.options.append">{{ field.options.append }}</span>
      </template>
    </template>
  </form-item-wrapper>
</template>

<script>
import FormItemWrapper from './form-item-wrapper'
import SvgIcon from '@/components/svg-icon/index.vue'
import emitter from '@/utils/emitter'
import i18n, { translate } from "@/utils/i18n";
import fieldMixin from "@/components/form-designer/form-widget/field-widget/fieldMixin";

export default {
  name: "input-widget",
  componentName: 'FieldWidget',  //必须固定为FieldWidget，用于接收父级组件的broadcast事件
  mixins: [emitter, fieldMixin, i18n],
  props: {
    field: Object,
    parentWidget: Object,
    parentList: Array,
    indexOfParentList: Number,
    designer: Object,

    designState: {
      type: Boolean,
      default: false
    },

    subFormRowIndex: { /* 子表单组件行索引，从0开始计数 */
      type: Number,
      default: -1
    },
    subFormColIndex: { /* 子表单组件列索引，从0开始计数 */
      type: Number,
      default: -1
    },
    subFormRowId: { /* 子表单组件行Id，唯一id且不可变 */
      type: String,
      default: ''
    },

  },
  components: {
    FormItemWrapper,
    SvgIcon,
  },
  data() {
    return {
      oldFieldValue: null, //field组件change之前的值
      fieldModel: null,
      rules: [],
    }
  },
  computed: {
    inputType() {
      if (this.field.options.type === 'number') {
        return 'text'  //当input的type设置为number时，如果输入非数字字符，则v-model拿到的值为空字符串，无法实现输入校验！故屏蔽之！！
      }

      return this.field.options.type
    },

    contentForReadMode() {
      return this.fieldModel ? this.fieldModel : ''
    },
  },
  beforeCreate() {
    /* 这里不能访问方法和属性！！ */
  },

  created() {
    /* 注意：子组件mounted在父组件created之后、父组件mounted之前触发，故子组件mounted需要用到的prop
       需要在父组件created中初始化！！ */
    this.registerToRefList()
    this.initFieldModel()
    this.initEventHandler()
    this.buildFieldRules()

    this.handleOnCreated()
  },

  mounted() {
    this.handleOnMounted()
  },

  beforeUnmount() {
    this.unregisterFromRefList()
  },

  methods: {

  }
}
</script>

<style lang="scss" scoped>
@import "../../../../styles/global.scss"; /* form-item-wrapper已引入，还需要重复引入吗？ */

span.no-wrap {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

</style>
